Smoke Alarm Battery Operated Smoke Detector with 10 Years Life/5 Years Battery, Isafenest Fire Alarm with LED Indicator…

If the smoke alarms BEEP randomly, please let us know directly and we will help you anytime.
[Sensitive Detection & Auto-Check] Our fire alarm has advanced photoelectric sensor and 360-degree smoke detection design, detecting dangerous smoke levels in seconds. The smoke alarm tests itself constantly with red led flashes every 33 seconds.
[Certified Quality & Long-term Use] Our smoke detectors are produced under the European standard EN14604, providing up to 10 years of service. The smoke alarm comes with a 9V battery which supports 5 years continuous use and you can change it by yourself when low battery warning.
[85 dB & LED Warning] Our fire alarm has 85dB loud buzzer and red indicator light. Easy to hear the alarm in the range of 20-40 square meters to help you get more escaping time when sleeping. The warning will continue until the smoke alarm is cleared or the test button is released.
[Easy Installation] No need for rewiring, as the battery operated smoke alarm is easy to install with the included screws, anchor plugs, and mounting bracket or just use an adhesive magnetic pad (sold separately) to effortlessly install it on ceiling.
[Dust-proof Design & Fire-retardant Materials] The exterior of this fire detector is made of flame retardant ABS+PC plastic material, which resists high temperatures. Dust-proof design ensures the sensitivity of the detector to reduce false alarm.